Still from American Sniper. The comic is never named, but if you look closely, you can see that it's issue No. 1 of the sixth volume of Punisher, released in January of 2004 (making it very believable as something Biggles could be reading during the platoon's 2004 deployment).
A Dr. Garry Choy, MD, Diagnostic Radiology, answered. Radiation fibrosis is the result of prior radiation exposure that results in scarring of an organ such as breasts, lungs, etc. Post radiation treatment fibrosis is the typical cause.
1 Radiation can cause scarring and inflammation of your lymph nodes or lymph vessels. 2  Cancer. 3  If cancer cells block lymphatic vessels, lymphedema may result. 4  For instance, a tumor growing near a lymph node or lymph vessel could enlarge enough to block the flow of the lymph fluid.